One lucky punch has proved time and again that favorites don't always win in boxing. These are 5 of the sport's biggest upsets.

When boxing fans think of the biggest upsets in the history of the sport nearly everyone’s mind lands on just a small handful of events. The 2019 match between Anthony Joshua and Andy Ruiz is by ...

Highly regarded UFC champion Amanda Nunes was recently defeated in what many in the MMA community called the biggest upset of all time. She was a 10/1 betting favorite.

Wednesday was the 45th anniversary of Muhammad Ali's (Cassius Clay for this fight) upset victory over Sonny Liston in Miami in 1964. Ali was such an underdog that the New York Times boxing writer ...

From Buster Douglas knocking out Mike Tyson to Holly Holm demolishing Ronda Rousey, here are the greatest upsets in boxing and MMA since 1990.

Boxing has had an amazing trend this year of upsets by way of knockout. Fights that were going one way have been turned around in a single dramatic punch. In just this year alone, fast-rising ...